Strange Internet browser issues

This is happening mainly with IE but its happening with Chrome and Firefox also. You can be browsing the web for as little as 30 seconds and then it just keeps opening new windows...and i do mean alot. After closing around 40 windows and ending all processes / resetting all internet explorer settings clearing user settings, re-installing making sure everything updated, running malware removal, registry clean ups, windows repair tools, fixing host and DNS settings...still getting the same problem. Any ideas?

Cheers

(just too add, there is an o2 connection manager that bypasses the usual windows one, could this be an issue?)